メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.917114033954 37.774116896394, 140.916925718527 37.7741441062468, 140.916264000461 37.7741756616305, 140.91599692979 37.7741781114814, 140.915550121739 37.7729541398338, 140.916241943156 37.7727923680446, 140.916257293359 37.7723797250324, 140.916885461038 37.7722438755922, 140.916966361808 37.7726585905192, 140.917381099118 37.7725360992174, 140.920629469544 37.7717896245567, 140.919492872818 37.7730611039335, 140.91880678467 37.7738569391326, 140.91861706408 37.77378800895, 140.918463933342 37.7737894167679, 140.917967063375 37.7738929556783, 140.917114033954 37.774116896394)) ^^http://www.opengis.net/ont/geosparql#wktLiteral